Gnu Regression, Econometrics and Time-series Library ( GRETL)

Description

Is a cross-platform software package for econometric analysis, written in the C programming language. It is is free, open-source software. You may redistribute it and/or modify it under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation.

Features

Easy intuitive interface (now in French, Italian, Spanish, Polish, German and Portuguese as well as English)

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Manual

The gretl manual comes in two PDF files, a User’s Guide and a Command Reference. English versions of these, formatted for U.S. letter-size paper, are included in the gretl source package and binary distributions. Gretl will access the other available versions — namely English (A4 paper), Italian and Spanish — on demand, via the Internet. You can also find the manual files here.